Japanese Chisels and Diamond Plates

[Robby W]

I have a couple of very good Japanese chisels that I routinely sharpened with waterstones. I recently converted my sharpening routine to use DMT Dia-Sharp plates, finishing with a 8000-10000 grit waterstone and a strop for the final finish. I was thinking about giving my old waterstones to a beginning friend, but then thought about my Japanese chisels.

I remember reading somewhere the diamond stones weren't recommended for Japanese chisels. Does anybody have any experience sharpening Japanese chisels with diamonds? Pros? Cons?

Thanks!